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SHARE-BASED COMPENSATION PLANS - ESPP Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense recognized $ 3,439 $ 5,031
Employee Stock | 2014 Employee Stock Purchase Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Deductions from employees 0 56
Share-based compensation expense recognized 0 96
Proceeds received by the Company for ESPP $ 0 $ 78
Weighted-average purchase price per common share (in dollars per share) $ 0 $ 5.21